乳腺癌的钙化可位于()
A.肿块内
B.肿块外
C.肿块内、外
D.肿块边缘
E.以上都是
参考答案:C
反胃的治疗原则是()
A.养阴益胃
B.化瘀通络
C.温中健脾
D.降逆和胃
E.清热化湿
—Tom isn’t feeling very well.
—He seems to have a cold the weather changes suddenly.
A.before
B.so
C.because
D.if